CJK Stroke Order Project
Creates graphics that illustrate the correct stroke order when writing Chinese characters. Unfortunately a lot of characters still lack this information - please visit the project page if you would like to help. Other learners will be very grateful.
Website: http://commons.wikimedia.org/wiki/Category:CJK_stroke_order

Projekt Deutscher Wortschatz
A project at the University of Leipzig that supplies our "words of the week" and provided a list of the most common German words.
Website: http://wortschatz.uni-leipzig.de/